Nokea
Vitamin B1 deficiency causes
- A. Beriberi
- B. Mumps
- C. Pellagra
- D. Scurvy
Correct Answer: A
Rationale: Beriberi A results from B1 deficiency, per document p14, 8.
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In fetal circulation, the pressure is greatest in the
- A. Left ventricle
- B. Right atrium
- C. Pulmonary artery
- D. Aorta
Correct Answer: B
Rationale: Right atrium B has the highest pressure in fetal circulation due to venous return, per document 3.
A nurse is providing parental instruction for a 24-hour urine collection for a hospitalized child. Which of the following statements by the child's parent needs further instruction?
- A. This test is to evaluate kidney function.'
- B. This test is timed with the first urine collection.'
- C. This container can be kept in the unit refrigerator.'
- D. The container comes from the laboratory.'
Correct Answer: C
Rationale: Urine collection containers should be kept cool but not in a shared refrigerator due to contamination risks; a specific cooler is used, indicating a need for clarification.
Most common endocrine abnormality in patients with cystic fibrosis is:
- A. Hypothyroidism
- B. Diabetes mellitus
- C. Adrenal insufficiency
- D. Hyperthyroidism
Correct Answer: B
Rationale: Cystic fibrosis-related diabetes is the most common endocrine issue, from pancreatic damage, per CFF. A, C-E are less frequent.
Biological causes of mild mental retardation includes all of the following except:
- A. Excessive fetal movements
- B. Maternal drug use
- C. Perinatal insults
- D. Sex chromosomal abnormalities
Correct Answer: A
Rationale: Excessive fetal movements aren’t a recognized cause of mild mental retardation; they’re nonspecific. B-E are established contributors (CDC).
What is the most likely cause of her pancreatitis?
- A. Bile duct adenoma
- B. Choledochal cyst
- C. Neonatal sclerosing cholangitis
- D. Sphincter of Oddi dysfunction
Correct Answer: B
Rationale: A 2-year-old with acute abdominal pain and pancreatitis, with ultrasound showing a significantly dilated common bile duct tapering distally and dilated intrahepatic ducts, suggests a structural anomaly. Choledochal cyst (Choice B) is a congenital dilatation of the bile ducts, often presenting in young children with pancreatitis, jaundice, or abdominal pain due to bile stasis or obstruction. Bile duct adenoma (Choice A) is a benign tumor, rare in children, and typically asymptomatic unless obstructive, which doesn’t align with the ultrasound findings. Neonatal sclerosing cholangitis (Choice C) is a rare progressive disease usually presenting in infancy with cholestasis, not typically acute pancreatitis or this ultrasound pattern. Sphincter of Oddi dysfunction (Choice D) causes biliary or pancreatic obstruction in adults but is uncommon in children and lacks the structural ductal dilatation seen here. Thus, Choledochal cyst is the most likely cause.